facing a problem in syncfusion.windows.forms.chart

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Hi, i have a .net application in 1.1 version which is using 3.1 version of syncfusion.

Now i converted my 1.1 .net application to 2.0 and also upgraded from syncfusion 3.1 to 4.0.X.X.

In my application, I am using "syncfusion.windows.forms.chart" namespace and i have written a class which implements the "IChartAxisLabelModel" interface.

In the "IChartAxisLabelModel" interface, there is a method "GetLabelAt(int)" which returns a class type "chartaxislabel".

I am implementing the method "GetLabelAt(int)" in such a way that it returns a string instead of the class type "chartaxislabel".

Also I am trying to cast the string value that is returned by the method "GetLabelAt(int)" to a class type "chartaxislabel" but i get an error like this::

Error 1 'LabelModel' does not implement interface member 'Syncfusion.Windows.Forms.Chart.IChartAxisLabelModel.GetLabelAt(int)'. LabelModel.GetLabelAt(int)' is either static, not public, or has the wrong return type. C:\Projects\QI\Reports20\QIKeyerReport\ChartModel.cs 91 15

The reason I am returning a string is because i am retreiving a value from the database and assigning that as a value to a property.